Answer:
1
Step-by-step explanation:
because a number multiplied with 1 is equal to itself
1 mile = 1760 yards
5280 yards = 5280 / 1760 = 3 miles
Answer:
The zeroes in this equation are -5, -4, and 5
Step-by-step explanation:
In order to find these, you need to factor by splitting. For this, we separate out the two halves of the equation and pull out the greatest common factor of each. Let's start with the front end.
r^3 + 4r^2
r^2(r + 4)
Now the second half.
-25r - 100
-25(r + 4)
Since what is left in the parenthesis are exactly the same, we can use that parenthesis next to one with what we pulled out.
(r^2 - 25)(r + 4)
And we can further factor the first parenthesis using the difference of two squares
(r^2 - 25)(r + 4)
(r + 5)(r - 5)(r + 4)
Now that we are fully factored, set each parenthesis equal to 0 and solve for x.
r + 5 = 0
r = -5
r - 5 = 0
r = 5
r + 4 = 0
r = -4
Answer:
feet
Step-by-step explanation:
The depth of the fish to the surface of water at 1:00 pm = 2
feet
=
feet
The depth of the fish to its initial position at 4:00 pm = 3
feet
=
feet
The position of the fish with respect to the water's surface at 4:00 pm = the depth of the fish to the surface of water at 1:00 pm + the depth of the fish to its initial position at 4:00 pm
=
+ 
= 
= 
The position of the fish with respect to the water's surface at 4:00 pm is
feet.